Hi y'all... today's silly question.... Do I have a lift kit or leveling kit? How do I tell? I know she has bigger tires, 285 75 16 and to me it looks dead level, no front end lower than rear... Only had truck for 2 weeks now, so still kind of new with this truck.... btw she's an '01 GMC 2500HD diesel and I'm 6'2" and have to lift my butt somewhat to get fully into the seat. Just wonderin'........